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Finding the Fourth Proportional to 932.00, 1,286.28 and 539.15

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Solution

The fourth proportional to 932.00, 1,286.28 and 539.15 is: 744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.00 : 1,286.28 = 539.15 : x
  2. Step 2: Convert to fraction form
    932.00/1,286.28 = 539.15/x
  3. Step 3: Cross multiply
    932.00x = 1,286.28 × 539.15
  4. Step 4: Simplify right side
    932.00x = 693,491.43
  5. Step 5: Solve for x
    x = 693,491.43/932.00
  6. Step 6: Final answer
    x = 744.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.